[openib-general] Kernel Oops in user-mad, mad

[Jack Morgenstein]

On Sunday 01 October 2006 13:14, Michael S. Tsirkin wrote:
> Quoting r. Jack Morgenstein <jackm at dev.mellanox.co.il>:
> > Subject: Kernel Oops in user-mad, mad
> > 
> > We received the following kernel Oops while running regression
> > (see console picture attached).
> > 
> > This looks like a possible race condition between handling umad send completions
> > and ib_unregister_mad_agent.
> > 
> > The Oops is at the list_del line of dequeue_send (user_mad.c: 186)
> > Note that ib_unregister_mad_agent invokes unregister_mad_agent->cancel_mads -> agent send handler.
> > 
> > Is there a possibility that there is a double deletion from a list somewhere?
> > 
> > Jack
> > 
> > 
> > 
> 
> Was this during module unload?
No.